The UK is the latest of several countries to introduce tightened regulations for passport photographs
. The upshot, smiles are strictly forbidden. This regulation is rooted in practicality, apparently "It's about having a closed mouth. An openmouthed smile will throw the scanner off."
, the scanner in this case being one part of the special facial recognition technology introduced to identify potential miscreants.
the previously mentioned German passport holder
going to do now ? The Joker
is also unavailable for comment. Honestly, if facial recognition technology is thrown off by a mere smile, then I would think it's time to head back to the drawing boards. Any would-be terrorists are going to be smiling a lot when they go through public areas in future.